Corundum (Var: Star Corundum)
Gembrook, Cardinia Shire, Victoria, Australia
Although 95% of the sapphire from this location is blue there is the odd bronze coloured star sapphire found like this one. You can see the 'glow' under the surface of the stone, please excuse the mineral tack showing!
Specimen is 12 by 6.5mm in size
© Toby Billing